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US 5,484,826 AGranted
Free-flowing, quick-dissolving lacquer binder granules
AssigneeWolff Walsrode AG
InventorsBurkhard Kressdorf, Erhard Luhmann, Lutz Hoppe
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Abstract
The invention relates to free-flowing, quick-dissolving lacquer binder granules based on cellulose esters, more particularly cellulose nitrates, and to a process for their production.
Claims3
A process for the production of free-flowing quick-dissolving cellulose-nitrate granules, comprising the steps of:
- a) Forming an emulsion of a lacquer resin, plasticizer or mixture thereof in water;
- b) Mixing said emulsion with an aqueous suspension of cellulose nitrate, said suspension having a pH of 2.5 to 3.5;
- c) Separating the suspended matter from said mixture;
- and
- d) Drying said separated, suspended matter and forming granules thereof.
2 more elements
Dependencies are inferred from the claim text.